动物营养学报 >

2022 , Vol. 34 >Issue 6: 3537 - 3546

DOI: https://doi.org/10.3969/j.issn.1006-267x.2022.06.016

研究论文 RESEARCHPAPER

桑叶提取物对断奶仔猪生长性能、养分表观消化率、抗氧化能力和免疫功能的影响

  • 宋敏 ,
  • 王超普 ,
  • 邓盾 ,
  • 刘志昌 ,
  • 陈秋雨 ,
  • 崔艺燕 ,
  • 鲁慧杰 ,
  • 李贞明 ,
  • 余苗 ,
  • 遆俊岭 ,
  • 马现永
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  • 1. 广东省农业科学院动物科学研究所, 畜禽育种国家重点实验室, 农业农村部华南动物营养与饲料重点实验室, 广东省畜禽育种与营养研究重点实验室, 广东畜禽肉品质量安全控制与评定工程技术研究中心, 广州 510640;
    2. 佛山科学技术学院生命科学与工程学院, 佛山 528225;
    3. 广东广汇农牧有限公司, 韶关 512040;
    4. 岭南现代农业科学与技术广东省实验室茂名分中心, 茂名 525000
宋敏(1985—),女,山东德州人,博士,从事动物营养与饲料和畜禽生态养殖研究。E-mail:songmin@gdaas.cn

收稿日期: 2021-11-04

  网络出版日期: 2022-06-14

基金资助

广东省现代农业产业技术体系饲料创新团队项目（2021KJ115）；广东省农业科学院农业优势产业科学团队建设项目（202118TD）；国家自然科学基金项目（31802103，31902200）；省级农业科技创新推广及农业资源与生态环境保护建设项目（2021KJ266）；广东省农科院人才引进项目（优秀博士）（R2020YJ-YB2002）；韶关市科技计划项目（200731114530834）

收起

Effects of Mulberry Leaf Extract on Growth Performance, Nutrient Apparent Digestibility, Antioxidant Ability and Immune Function of Weaned Piglets

  • SONG Min ,
  • WANG Chaopu ,
  • DENG Dun ,
  • LIU Zhichang ,
  • CHEN Qiuyu ,
  • CUI Yiyan ,
  • LU Huijie ,
  • LI Zhenming ,
  • YU Miao ,
  • TI Junling ,
  • MA Xianyong
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  • 1. Guangdong Engineering Technology Research Center of Animal Meat Quality and Safety Control and Evaluation, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China;
    2. College of Life Science and Engineering, Foshan University of Science and Technology, Foshan 528225, China;
    3. Guangdong Guanghui Agriculture and Animal Husbandry Co., Ltd., Shaoguan 512040, China;
    4. Maoming Branch, Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Maoming 525000, China

Received date: 2021-11-04

  Online published: 2022-06-14

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摘要

本试验旨在研究饲粮中添加桑叶提取物（MLE）对断奶仔猪生长性能、养分表观消化率、消化酶活性、抗氧化能力以及免疫功能的影响。试验选取48头平均体重为（8.287±0.141） kg的"杜×长×大"三元杂交去势断奶仔猪，按照体重随机分为2组，分别为对照组（饲喂基础饲粮）和MLE组（饲喂基础饲粮＋1 000 g/t的MLE），每组6个重复，每个重复4头猪。试验期28 d。结果表明：1）2组断奶仔猪的平均日采食量（ADFI）和料重比（F/G）之间无显著性差异（P>0.05），但与对照组相比，MLE组的平均日增重（ADG）有增加的趋势（0.05≤P<0.10），且腹泻率显著低于对照组（P<0.05）。2）与对照组相比，MLE组粗脂肪的表观消化率显著提高（P<0.05），干物质的表观消化率有升高的趋势（0.05≤P<0.10）。3）与对照组相比，MLE组断奶仔猪空肠和回肠中脂肪酶的活性显著升高（P<0.05）。4）与对照组相比，饲粮添加MLE可显著提高断奶仔猪血浆中谷胱甘肽过氧化物酶（GSH-Px）的活性和总抗氧化能力（T-AOC）（P<0.05），以及肝脏中超氧化物歧化酶（T-SOD）的活性（P<0.05）。5）与对照组相比，MLE组断奶仔猪血浆中肿瘤坏死因子-α（TNF-α）的含量显著降低（P<0.05），血浆中免疫球蛋白A （IgA）和免疫球蛋白M （IgM）的含量显著升高（P<0.05）。综上所述，饲粮添加1 000 g/t的MLE可降低断奶仔猪腹泻率，提高其肠道内脂肪酶的活性和粗脂肪的表观消化率，并能提高断奶仔猪机体的抗氧化能力及免疫功能。

关键词： 桑叶提取物; 断奶仔猪; 养分表观消化率; 消化酶活性; 抗氧化能力; 免疫功能

本文引用格式

宋敏 , 王超普 , 邓盾 , 刘志昌 , 陈秋雨 , 崔艺燕 , 鲁慧杰 , 李贞明 , 余苗 , 遆俊岭 , 马现永 . 桑叶提取物对断奶仔猪生长性能、养分表观消化率、抗氧化能力和免疫功能的影响[J]. 动物营养学报, 2022 , 34(6) : 3537 -3546 . DOI: 10.3969/j.issn.1006-267x.2022.06.016

Abstract

This experiment was designed to investigate the effects of dietary mulberry leaf extract (MLE) on growth performance, nutrient apparent digestibility, digestive enzyme activity, antioxidant ability and immune function of weaned piglets. Forty-eight Duroc×Landrace×Yorkshire castrated weaned piglets with average body weight of (8.287±0.141) kg were selected. Piglets were randomly allotted into 2 groups as the control group (fed a basal diet) and the MLE group (fed the basal diet+1 000 g/t MLE) according to body weight, each group consisted of 6 replicates and 4 pigs per replicate. The experiment lasted for 28 days. The results showed as follows:1) there were no significant differences in average daily feed intake (ADFI) and feed/gain (F/G) of weaned piglets between the two groups (P>0.05), but compared with the control group, the average daily gain (ADG) in the MLE group had an increasing trend (0.05 ≤ P<0.10), and the diarrhea rate was significantly lower than that in the control group (P<0.05). 2) Compared with the control group, the apparent digestibility of ether extract in the MLE group was significantly increased (P<0.05), and the apparent digestibility of dry matter tended to be increased (0.05 ≤ P<0.10). 3) Compared with the control group, the lipase activity in jejunum and ileum of weaned piglets in the MLE group was significantly increased (P<0.05). 4) Compared with the control group, dietary MLE significantly increased the glutathione peroxidase (GSH-Px) activity and total antioxidant capacity (T-AOC) in plasma as well as the total superoxide dismutase (T-SOD) activity in liver of weaned piglets (P<0.05). 5) Compared with the control group, the plasma tumor necrosis factor-α (TNF-α) content of weaned piglets in the MLE group was significantly reduced (P<0.05), and the contents of immunoglobulin A (IgA) and immunoglobulin M (IgM) in plasma were significantly increased (P<0.05). In conclusion, dietary 1 000 g/t MLE can reduce the diarrhea rate, improve intestinal lipase activity and apparent digestibility of ether extract, and improve antioxidant ability and immune function of weaned piglets.

Key words： mulberry leaf extract; weaned piglets; nutrient apparent digestibility; digestive enzyme activity; antioxidant ability; immune function

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